Roller skate structure



5, w. BLU'MM v 2,410,009

ROLLER SKATE STRUCTURE Oct. 29, 1946.

Filed July 26,- 1945' Help Z0 40 z INVENTORY BY Swmzr W51. MM

ATTORNEY Patented Oct. 29, 1946 2,410,009 ROLLER SKATE, STRUCTURE Stanley W. Blumm, Marathon; Y.

Application July 26, 1945,

Serial No. 607,183

7 Claims. (01. 280-713) 4 The present improvements relate to a compact, all metal skate of simple design particularly intended for juvenile use, and one which may readily be converted into either an ice skate or a roller skate and be profitably marketedat a moderate retail price. The novel structural features herein embodied afford a rigid cross-sectionally bifurcated-runner blade for ice skating and detachably centeredin the mouthed crotch thereof, is a unitary roller mounting chassis of the underslung type. ofthese components is such as. to provide for a sturdy roller skate assembly that shall present a trim appearance and require comparatively few principal parts adapted to be economically stamped from sheet metal on a rapid productive basis. When detached, my unused chassis may be independently stowed without chassis dismemberment.

erected along said crown by The object of my invention is to devise a refined convertible skate of the indicatedcharacter in which a cross-sectionally socketed runner blade may be demountably seated upon a unitary roller-mounting chassis and permitting the bodily detachment of such chassisas an assembled unit. Embodied herein are also structural refinementspertinent to a roller skate assembly of the non-separable chassis. type.

I Reference is had to the accompanying one sheet of drawings which exemplifies alpreferred embodiment of my skate, and in whichr Fig. 1 represents a top view of;such convertible skate assembly; and Fig. 2 is an elevational side view thereof with my chassis attached for roller skating purposes. i

Fig. 3 is cross-sectionally taken along 3-4 of Fig. 1.

FigAshows front elevationalview of Fig. 2;

and-Fig. 5 is a cross-section taken along 5-5 of Flg;3., i

Referring more explicitlyto these disclosures, theice' skate component thereof may comprise a semitubular, cross-sectionally dished or socketed runner iii of sheet metal shaped to provide for divergent double blades H and I2 that respectively provide for the sharpened runner edges HA and 12A as indicated in Fig. 5. The apex or crown region of such U-shaped runner is preferably given an arcuate profile l3 while the toe or forward ends of said cutters may be curved upwardly to terminate into a rounded nose 2%. The. rear end region of the runner crown may be slotted at l and have a heel plate It that is propped bythe cup 25 and adjustably the clamping bolt has been adapted;

to support the heel or the like coupling means H. The upstanding ear l8 of such plate may be apertured at IQ for the reception of a conventional tie strap (not shown).

Intermediate its ends, the runner Iii may be equipped with a substantially flat sole plate 20 as mounted upon the toe cup 2| having its base fixedly riveted to the runner at 22. Said sole plate may be provided with one or more sunken strap receiving lugs such as 23 or with equivalent shoe engaging means. The forward end of such sole platemay have a stabilizing strut 2d struck therefrom and cleated to the runner crown as in Fig.3. Both of my sole and heelplates are purposely elevated above the level of the runner socket and arranged to present a substantially flat foot rest devoid ofupstanding ridges.

The foregoing description is directed to the several structural elements; that collectively constitute the ice skate component ofmy assembly and as such may" be independently utilized in a conventional manner. In order toprovide for a multipurposeskat my improved chassis to be securely coupled to the aforesaid component. To this end, I provide for a stamped sheet metal understructure or unitary roller chassis 30 having an inverted troughlike cross-sectional profile. Such framework preferably comprises a stepped region defined by the parallelly aligned flat flank flanges 3| and 32 which may be integrally spanned by the saddle ridge 33 extending longitudinally of the chassis length as shown. Said centralized ridge maybe shaped to snugly nest interiorly beneath the socketed runner in the underslung fashion crosssectionally depicted in Fig. 5. As will be obvious, the dished runner l0 and the nested saddle ridge 33 may in certain instances be integrally affixed and sole plates l6 and 2D thereon. i p

The rear ridge region may be slotted in registry with the runner slot l5, the bolt I? being kept sufficiently long to clampingly enter therethrough. Similar supplement ry bolts ordowels such as "A and NB serve to additionally retain the saddle ridge 33 against displacement whenassembled in place as a convertible skate. All bolt heads are rendered accessible to have anordinary screwdriver or its equivalent applied thereto without need gof other implements, the square bolt nuts being'prevented fromturning within the ridge confines. The seated double blade I0 is purposely disposed to leave a protectiveclearance gap 34 between the straddling sharpened edges i i and I2 and their respective underlying flank flanges 3| and 32.

Each outer edge of such flank flanges 3i and 32-as shown;

As a further refinement, the toe end Qf my t'ofo'ze described and more partie1'11ar-Iybha'racterroller skate assembly Comprising 'a' stamped elongated sheet metal chassis frame- Work inverted ross-s'ectionally trough-like profile shaped to provide for cornple said bib portiqn and 'rid'ge.

7. I 'Arollerskate assembly provided roller carrying axles that are with mated laterally spabedh unitary sheet metal framework spanning said axles and having a troughlike cross-sectional shape comprising a pair of aligned interspaced flat flank flanges together with a saddle ridge that bridges the flange interspace and which flank flanges each carry a skirt flange arranged to mount said pair of axles therethrough, the forward end region of said ridge being upturned to constitute a shroud guard including a bib portion that extends rearwardly over said ridge, and a sole plate and a heel plate borne by said saddle ridge, the forward region of said sole plate being 5 disposed to overlap such rearwardly extending bib portion.

STANLEY W. BLUMM. 

